200 pounds and 180-190cm, so 6 ft+
I presume women's boxing has weight classes even in Japan, 200 pounds puts her about into Heavyweight. For dudes yeah there's gonna be folks around. Ladies side... in Japan? My brother in Christ...
Of course, the manga has like 200 chapters so clearly there's people... and I suppose she could lose weight, depending on how much of what she's got is chub. Still kind of a hard sell to me.